Determination of double-K fracture parameters of concrete using peak load method

•We propose the peak load method for double-K fracture model of concrete.•It does not consider the linear asymptotic superposition assumption.•Critical crack mouth opening displacement is not required in proposed method.•Hence, any such error while measuring CMODc during test is avoided. This paper...

Full description

Saved in:
Bibliographic Details
Published in:Engineering fracture mechanics 2014-11, Vol.131, p.471-484
Main Authors: Kumar, Shailendra, Pandey, Shashi Ranjan, Srivastava, A.K.L.
Format: Article
Language:English
Subjects:
Bend tests
Cohesive stress
Computation
Concretes
Double-K fracture parameters
Errors
Fracture mechanics
Mathematical analysis
Mathematical models
Peak load
Peak load method
Three-point bend test
Weight function
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•We propose the peak load method for double-K fracture model of concrete.•It does not consider the linear asymptotic superposition assumption.•Critical crack mouth opening displacement is not required in proposed method.•Hence, any such error while measuring CMODc during test is avoided. This paper presents application of peak load for determining double-K fracture parameters of concrete. The existing conventional experimental method and analytical methods require measurement of crack opening displacement at critical condition during fracture test whereas this measurement is not required in peak load method. Further, double-K fracture parameters are computed using both conventional analytical method and peak load method for three point bending test of specimen size range 200–500mm. The comparison of the results shows that both the fracture parameters of the double-K fracture model can be determined using peak load method without any appreciable error.
ISSN:0013-7944
1873-7315
DOI:10.1016/j.engfracmech.2014.09.004